This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Nec Corporation. Active years: 1988-1996.
Company Filing History:
Years Active: 1988-1996
Title: Shigeo Sugou: Innovator in Semiconductor Technology
Introduction
Shigeo Sugou is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on advancing methods for fabricating semiconductor lasers and photo detector arrays, which are crucial for modern optical interconnections.
Latest Patents
One of Sugou's latest patents is a method for fabricating semiconductor laser and photo detecting arrays. This invention provides a method of fabricating two-dimensional semiconductor surface emitting laser and photo detector arrays for wavelength division multiplexing optical interconnections. The process involves creating a first stacked multiple layer structure on a first semiconductor substrate, followed by the growth of an intermediate layer. A second stacked multiple layer structure is then grown on this intermediate layer, and a second semiconductor substrate is adhered on top through heat treatment. This innovative approach allows for selective wet etching, enabling the formation of surface emitting laser arrays and photo detector arrays on the respective semiconductor substrates.
Another notable patent is for a buried heterostructure semiconductor laser with high resistivity. This improved design includes high resistive burying layers positioned on both sides of the active region, facilitating high-speed modulation and enhancing quantum efficiency by reducing capacitance and leakage current. Additionally, the design incorporates spacer layers to maintain reliability by preventing impurity diffusion from the burying layers to the active region.
Career Highlights
Shigeo Sugou is associated with NEC Corporation, a leading company in the technology sector. His work at NEC has allowed him to push the boundaries of semiconductor technology, contributing to advancements that have significant implications for various applications in electronics and telecommunications.
Collaborations
Sugou has collaborated with notable colleagues such as Tomoo Yanase and Kenichi Kasahara. These partnerships have fostered an environment of innovation and have led to the development of groundbreaking technologies in the semiconductor field.
Conclusion
Shigeo Sugou's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in optical interconnections and semiconductor devices, showcasing the importance of innovation in technology.